# Donald R. Nielsen

> hydrologist from the US

**Wikidata**: [Q102130260](https://www.wikidata.org/wiki/Q102130260)  
**Source**: https://4ort.xyz/entity/donald-r-nielsen


## References

1. [Source](http://nationalacademies.org/docs/D30459506E4879611E3DA1F6CF0EF9F4D1E92AC291DE)
2. Integrated Authority File
3. [Source](https://boku.ac.at/universitaetsleitung/rektorat/stabsstellen/oeffentlichkeitsarbeit/themen/ehrentraegerinnen/ehrendoktorinnen/nielsen)
4. [Source](https://www.agu.org/honor-and-recognize/honors/union-medals/robert-horton-medal)
5. National Library of Israel Names and Subjects Authority File